8mm Forum: Enlarged 8 mm view

This is topic Enlarged 8 mm view in forum 8mm equipment for sale/trade at 8mm Forum.

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Posted by Rob Caspers (Member # 3646) on April 16, 2013, 03:20 AM:

A very good day to you all! I'm new on this forum, so maybe this subject has been treated before without my knowing.
My question is this: I discovered om my father's (standard) 8 mm movies from the fifties and sixties a lot of extra image between the sprocket holes. Is there anyone who knows of a SAFE way to enlarge the view window sideways so it becomes possible to project the entire image, but with the sprocket holes blended off? Thanks for answering!

Posted by Martin Jones (Member # 1163) on April 16, 2013, 03:47 AM:

Rob,
It is certainly possible, with great care, to widen the gate aperture with a file; many of us have done it to take advantage of the full normal camera aperture when projecting or for purposes of transfer. Some 16 mm enthusiasts do it to to both camera and projector to take advantage of the full width of the film between the sprocket holes... but then they usually reduce the taking and projecting height of the frame so that the holes do not intrude.
It sounds as if your father's camera may have been so modified.

Can you post an enlargement of your 8mm film so that what you are seeking to do becomes clearer?
Martin

Posted by Rob Caspers (Member # 3646) on April 16, 2013, 05:26 AM:

Hi Martin,
Thanks for yor response! I will try to make a picture of a frame including the sprocket holes. My fathers camera was certainly not modified, it is still as it was when it was new. I cecked it, I still have it. It simply has a wonderful wide aperture. Now I found out that the image spreads to about half of the sprocket holes, so it is quite a large bit.
I am afraid to damage my dearly beloved Eumig Mark S which is specially designed for standard 8. Would there be a way of interchanging a separate part of the film channel to return the projector to its orginal state when desired? After all one does not want to watch that widescreen view when there is nothing to be seen on the side..

Greetings, Rob

Posted by Joerg Polzfusz (Member # 602) on April 16, 2013, 07:43 AM:

Hi,

a lot of cameras are known to have a "larger than normal" image area without being modified, e.g. the "Zapruder camera": http://home.comcast.net/~the-puzzle-palace/zapruder.htm
Even some Super8-cameras do this (Regular8 on the left, Super8 on the right - in both cases the image is larger than the standard as it reaches into the sprocket-area):
http://framediscreet.com/wp-content/uploads/2011/12/super8mm_regular_8mm.jpg
Another example of "image area vs. perforation" from an unaltered Double8-camera:
http://framediscreet.com/wp-content/uploads/2011/08/super_8mm_lianna_007_8mm_split-0-02-38-05.jpg
Some telecine-services even use this fact to record an image that's wider than 4:3 and hence closer to the 16:9-format of today's TVs.

Jörg

Posted by Rob Caspers (Member # 3646) on April 16, 2013, 10:39 AM:

Hello Martin,
It took me some time to elaborate a picture of a frame, finally I managed it with the aid of my Bell&Howell 16mm projection lens but I could not get it any sharper, alas. The link to that frame is in this message. And as fo my fathers camera: it is a CROWN 8 EE of which I have taken some pictures too, with the film channel open. If desired I can upload a picture of that. Clearly it has not been tampered with to enlarge the aperture.
I hope you can see what I intend to do: broaden the aperture in between the sprocket holes. But preferably on a SPARE part to be able to restore the projector to the original state.
I assume it will be a very tricky adventure to file away some metal from the view window. Any advice concerning doing this?
Rob.

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